There's a brief clip of a kid scrolling through photos of vaginas, but the camera focus blurs it out.

A lot of sexual references are thrown around by both kids and adults. There is also talk about puberty.

The films violence is on par with Shaun of the dead.

The film contains numerous depictions of violence, where children who have turned into zombies attack the school teachers.

A group of zombie children attack their teachers in the playground, pulling them and biting on their limbs. A boy in this scene can be seen briefly tearing open his teachers abdomen area and pulling out a part of the intestines.

Aside from this, the corpse of another teacher is shown with the intestines exposed, while a child pulls off an arm from the dead body.

In addition, the film also features a scene in which a zombie lands face-first on the road after being hit by a car. A close shot of its bloody, mangled jaw is depicted briefly.

Throughout the film, while some details of violence, bloodshed and gore are depicted, they are shown only very briefly.

During one scene, zombie children are seen playing with human body parts as if they were toys.

1 Use of "Cunt" said by a kid.

Several uses of "dick."

The film contains moderate uses of coarse language voiced by the main characters, expletives such as 'fuck' and 10 uses of motherf* are used 17 times.

A character consumes some mushrooms that contain psychedelic compounds and shown to 'high' in subsequent scenes

Some of the violence can be extremely intense, especially the fact that children are involved.

The alternate ending depicts the main characters trapped in the woods as a swarm of zombified children surround them. This ending is rather eerie and doesn't exactly fit the tone with the rest of the movie, hince why this ending is only available to see on bluray copies of the movie.